#3F7EA4#3F7EA4

#3F7EA4 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.8% C 0.088 H 237.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EA4
RGB	rgb(63, 126, 164)
HSL	hsl(203, 44%, 45%)
HSV	hsv(203, 62%, 64%)
CMYK	cmyk(61.6%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(50.28, -8.43, -26.36)
CIE-LCH	lch(50.28, 27.67, 252.26°)
OKLab	oklab(56.76% -0.047 -0.0738)
OKLCH	oklch(56.76% 0.088 237.5)
XYZ	xyz(16.2091, 18.6572, 37.8618)
Luminance	0.1866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EA4 #A4653F

analogous

#3FA497 #3F7EA4 #3F4CA4

triadic

#3F7EA4 #A43F7E #7EA43F

tetradic

#3F7EA4 #973FA4 #A4653F #4CA43F

square

#3F7EA4 #973FA4 #A4653F #4CA43F

split-complementary

#3F7EA4 #A43F4C #A4973F

monochromatic

#1D3A4C #2E5C78 #3F7EA4 #5F9CC1 #8BB8D2

Accessibility & contrast

On white

4.44

#3F7EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#3F7EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EA4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EA4	#FFFFFF	#000000	##000000
##3F7EA4	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7DA6

Deuteranopia (green-blind)

#5F73A3

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3f7ea4;
/* rgb */ color: rgb(63, 126, 164);
/* oklch */ color: oklch(56.8% 0.088 237.5);

Tailwind

colors: {
  custom: {
    50: '#7da3bf',
    500: '#3f7ea4',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ea4;
$custom-light: #7da3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ea4",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 202.574,
    "s": 44.493,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56764,
    "c": 0.08754,
    "h": 237.5
  },
  "luminance": 0.18659
}

Semantic roles & 50–950 ramp

primary

#3F7EA4

secondary

#BD9882

accent

#8454D4

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3F7EA4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →